Siemens 3VA1 100 A Manual page 153

Short circuit alarm switches SAS
Short circuit alarm switches signal trips only if they have been initiated by a short circuit.
These events are also indicated on the molded case circuit breaker.
The trip must be reset by deliberate acknowledgement of the fault before the molded case
circuit breaker is switched to ON again.
Short circuit alarm switches are only compatible with 3VA1 molded case circuit breakers. On
breakers equipped with electronic trip units, the short circuit alarm function is performed by
the electronic trip unit (ETU) and the EFB300 external function box.
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02
Accessories
4.2 Internal accessories
153